package com.shen.demo.demos.web.service;

import com.baomidou.mybatisplus.extension.service.IService;
import com.shen.demo.demos.web.domain.entry.UserName;
import com.shen.demo.demos.web.mapper.UserNameMapper;
import org.springframework.stereotype.Service;

import java.util.Optional;


public interface UserNameService extends IService<UserName> {
    Optional<UserName> getById(Integer id);
}
